There are 5 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 91173 | L. Villier | north face of Fossil Mountain, section K-North of Hintze, millard county Llanvirn - Ordovician 2-3 - Utah | Blake and Guensburg (1993) |
| 174456 | P. Wagner | Square Top Section, 15 meters above base of formation. Blackhillsian - Ordovician 2 - Utah | Hintze (1973) |
| 174457 | P. Wagner | SQ[S] - ridgeline knob marked 5,511 ft, just south of Square Top (coll. Guensburg) Blackhillsian - Ordovician 2 - Utah | Blake et al. (2007) |
| 174458 | P. Wagner | SQ[Back] - descending ridge just east of Square Top (coll. Sprinkle) Blackhillsian - Ordovician 2 - Utah | Blake et al. (2007) |
| 216844 | P. Novack-Gottshall | Ibex area Black Hills Dapingian - Ordovician 2 - Utah | Blake et al. (2016) |